Wall paper trimming and pasting machine



Dec. 25, 1.934. c, scHERER. 1,985,522

WALL PAPER TRIMMING AND PASTING MACHINE Filed Nov. 16, 1932 2 Sheets-Sheet l i 4W *74 v f i l 7m.

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Patented Dec. 25, 1934 PATENT OFFICE WALL PAPER TRIMMING AND PASTING MACHINE Carl Scherer, Albany, Calif.

Application November 16, 1932, Serial No. 642,952

1 Claim.

This invention is a wall paper trimming and pasting machine and is particularly adapted to the hanging of paper on the vertical walls merely by withdrawing the paper from the roll and applying the paper to the wall, the paper being left integral with the roll until the paper is applied and thenk being trimmed oi at the base board or point to which. the paper is carried, and is also adapted for trimming and pastingthe paper for the ceiling, vbut which obviously must be cut to suitable length from the roll as drawnv from the machine, before applying to the ceiling.

The procedure followed in wall papering is t0 rst trim one or both edges oi the roll of paper, which is sometimes done with an ordinary shears and at other times by means of a rotary machine, in which the wall paper is unrolled from the original roll andy rerolled, and during this unrolling operation, rotary cutters perform the trimming operation. Following the trimming, the paper is usually cut to suitable lengths from the roll and in such position as to cause matching of the design on the abutting edges, after which paste is applied successively to the different lengths which are individually applied to the Wall.

In my invention, for papering the walls it is merely necessary to move the vmachine carrying the roll of paper in registry with the position at which the wall paper is to be applied, withdraw the paper from the roll, pulling the endv of the paper upward to a point adjacent the ceiling where the top edge of the paper is to terminate, apply the top edge to the-wall and` brush the paper down to the bottom,A` cutting the paper off at this point, moving the machine to the next position and repeatingv the operation, the machine automatically trimming the one or both edges from the paper as may be desiredand also trimming the paper to a definite width where narrower stripsy are required.. A

The main object` of the invention therefore is to provide a machine which will automatically trim and apply paste to-wall paper as it is withdrawn from the roll,.so that the paper can be applied to a Wall directly as it is withdrawn from the machine. V

Another object of the inventiqnisto provide a machine as outlined with adjustable means for varying the thickness of the coating of paste applied tothe wall paper, suitable means being provided to prevent the owing. vof the paste when withdrawal of the paper is interrupted.

A further object of the invention is to provide adjustable trimming means whereby the roll oi paper may be trimmed at either one or both edges or may be trimmed to narrower widths as the paper is withdrawn from the machine.

A still further object of the invention is to provide a machine with a vehicular mounting to permit its free movement in only one plane, and that plane being relatedparallel to the roll of paper, so that the machine will not have any tendency to crawl away from the wall as the paper is withdrawn.

A still further object of the invention is to provide a machine of the class vdescribed of knock-down form so that it may be packed into a small space for shipment.

Other objects and advantages ofthe invention will become apparent as the following description is read on the drawings forming a part of this specication and inwhich similar reference characters are used to` designate similar parts throughout the several views, of which:

Fig. l is a side elevation ofthe invention.

Fig. 2 is partly a full plan view and partly a section-taken on line 2-2 of Fig. 1.

n Fig. 3 is a section taken on line 3-3 of Fig. 2.

Fig. 4 is an enlarged section showing the paste feeding opening in the bottom o f the paste hopper.

Fig. 5 is a fragmentary View showing a detail of construction.

The invention consists of a platform 10 which is provided with `suitable rollers 11 which are mounted to permit movement of the platform in onlyone plane or in a straight line. The platform is provided adjacent both ends with parallel securing members l2, between which the ends 13 and 14 of the machine are secured as indicated at 15, these sides being secured by means of a bolt or screw, not shown, providing convenient assembly and disassembly of the machine.

Slidably received in diagonal slotsl formed in the end members 13 and 14 is a back 16, this back being removably secured by means of pins or screws 17, thereby forming the frame consisting of the platform 10, ends 13-14 and back 16 into a rigid unit.V

Mountedbetween the ends13 and 14 is a roller 18, this roller being preferably supported at its ends in ball bearings 19, which ball bearings are received in slots 20 and retainedv in place by a hinged resilient member 21, which is secured by means of a latch 22, whereby the member 21 may be readily released and the roller 18 together with the ball bearing removed for disassembly of the machine. This roller. 18 is secured in the innerrace of the ball bearings 19 by slight frictional cooperation so as to permit removal of the ball bearing for insertion of the roller 18 in a roll of wall paper 23.

Mounted in spaced relation to the roller 18 is a guide roller 24, this guide roller being mounted in a manner similar to that described for roller 18, being mounted in ball bearings 25, the ball bearings-being `frictionally secured in apertures formed in the respective ends A13 and 14, this roller 24 forming a guide for the slitting elements to retain the paper in suitable position for cooperation with the slitting elements.r

The slitting means consists of a shaft 26 which is non-rotatably secured in the respective ends 13 and 14 by means of cooperating nuts. or other means, this shaft having rotatable thereon a sleeve 27, on which sleeve is non-rotatably secured by means of thumb screws 32, a plurality of arms 28, the terminal ends of the arms 28 being provided with suitable clamping means 29 for securing a razor blade or other slitting element 30 for trimming the edges off the roll of paper or slitting the paper lengthwise, a plurality of these arms beingprovided and being individually adjustable along the tubular element 27. Means for securing the tubular element 27 against rotation on the shaft 26 is provided and may consist of a thumb screw 31 so that the cutters 30 may be secured in fixed position relative to the roller 24. By this means the cutters 30 may be individually brought into cooperative relation to the strip of wall paper 33 to trim off the edges or slit the paper lengthwise and the slitters 30 may all be brought coincidently into cooperation with the paper by rotating the sleeve and clamping by means of the thumb screw 31.

Rotatably mounted in advance of the slitting means is a roller 34, this roller being mounted in a manner similar to that shown for roller 24, being mounted in ball bearings 35 frictionally secured in the end members 13 and 14. This roller 34 forms the paste applying roller and runs in a counter direction as related to the travel of the paper so that the paste is actually wiped off the paste applying roll as the paper is Withdrawn, this paste applying roll 34 having positive driving means consisting of a sheave 36, secured on ,the end of the shaft 39 formed at the end of the roll, the sheave 36 being driven by a sheave 37 secured on the end of the shaft 38 formed on the end of roll 18by means of a belt 40 cooperating between the sheaves, so that when the paper is drawn from the roll, positive driving means is afforded by the sheave 37 to the sheave 36 and thence to the roll 34.

Mounted in cooperation with the roll 34, and adjacent tothe opposite ends thereof are stripping fingers 41, these stripping fingers being adapted to prevent the paper from following about the front face of the roll 34 in the event that the roll of paper 23 is placed on roller 18 in the wrong position. v

Adjustably mounted in advance of the roller 34 is a brush 42, this brush extending the full width of the roll and being formed integral with the sleeve 43, this sleeve being rotatable on a rod 44 in such manner as to be frictionally rretained in adjusted position, adjusting means 45 being provided, whereby the brush may be brought into or out of cooperation with the paper 33.

v Mounted in advance of the roller 34 and in the lower plane is a roller 46, this roller also being mounted in ball bearings 47 which are receivable in a slot 48 formed in thefront of the respective end members 13 and 14, the slot being so formed as to permit insertion of the roller, the roller after insertion being normally retained by the pressure exerted by the wall paper during withdrawal from the machine. Additional retaining means as also controlling and guiding means for the paper is provided in the form of spring fingers 49 which are provided at their outer ends with rollers 50 to cooperate with the edges of the paper, these spring fingers being mounted on a cross member 51 removably secured between the ends 13 and 14.

Mounted in sub-lateral relation to the roller 18, is a roller 52 about which the wall paper passes when the paper is applied to the side walls of a dwelling.

Pivotallymounted in bearings 53, which are secured to the back 16 is an arm 54, this arm having pivotally secured at its outer end, a shoe 55 for cooperation with the periphery of the roll of wall paper 23, this arm and shoe being resiliently urged into cooperation with the roll 23 by means of a spring 56, the shoe being adapted to tension the paper as drawn from the roll.

Pivotally mounted in bearings 57, which bearings are secured to the front surface of the back 16 is a paste hopper or receptacle 58, this hopper being limited as to movement and adjustable by means of an eccentric shaft 59, this eccentric shaft being rotatable and frictionally held in the end members 13 and 14 and having an adjusting element 60 by means of which the eccentric shaft 59 may be adjusted, the shoe 61 formed on the back of the hopper 58 cooperating with the eccentric, the adjustment of the eccentric being provided to vary the relation of the nozzle or opening in the bottom of the hopper to the roller 34 for the purpose of varying the thickness of the paste applied to the paper. This nozzle or opening extends the full width of the roller 84 and is provided with suitable plugs 62 which may be inserted from the top of the machine, these plugs being preferably provided with handles or rods 63 so that proper provision may be made for trimming the paper to definite widths and pasting only the trimmed portion. This feature also adapts the device for use with papers of different widths. The feed of paste from the hopper may be instantly and conveniently shut 01T by merely rotating the eccentric shaft 59 by means of the adjusting member 60, the bottom of the nozzle thereby resting on the periphery of the roll 34, forming a closure for the nozzle. The pivotal mounting of' the hopper 58 permits the hopper to be swung about its pivotal mounting for emptying the contents as also for thoroughly cleaning the hopper and a suitable lip 64 is provided at the rear of the hopper sothat the contents will flow clear of the back wall 16 when the hopper is tipped back.

The device is assembled by first placing the ball bearings and rolls in their proper positions as also the back r16, inserting the ends between the spanning elernents 12 and placing the securing elements to secure the entire device into a unit.

The operation of the device is as follows:

A roll of wall paper 23 is mounted on the roll 18, which roll is readily removable from the assembled machine, the end ofthe roll being threaded under the roller 24 as also under the roller 34, and thence passing over the top of roller y46 and under the brush 42, and between the roller 46 and rollers 50. The shoe 5 5 is permitted to Contact with the periphery of the roll of Wall paper, the arms 28 are adjusted on the sleeve 27 to the desired position for trimming or slitting the roll of wall paper as the case may be, all being adjusted whereby those to be in operation will simultaneously cooperate with the wall paper, after which the sleeve is rotated so as to cause the cutters 30 to pass through the paper, the thumb screw 31 being then tightened to fix the cutters into position as shown in Fig. 3. The eccentric 59 is then adjusted by means of the adjusting `element to the desired clearance between the nozzle 6l and the roller 34 to give the desired thickness of paste on the paper, and the brush 42 is swung to Contact with the paper. Where the side walls are to be papered, the strip o1" paper 33 is brought about and under the roll 46, then passing under the roll 52, the end being drawn upwardly to the point at which the top of the Wall paper is to come on the wall, the top edge applied and the paper brushed down to the bottom point where it is cut oi, the machine being moved to the next position at which a strip of paper is to be applied and the same procedure duplicated, the eccentric 59 being released after each feeding of paper to prevent the paste from continuing to ooze out past the nozzle. It will be noted that as the paper is drawn out that the slitters 30 trim the paper according to the setting of the slitters so that as the paper is withdrawn, it is trimmed to width and the edges trimmed oi as desired and the paste applied in an even iilm all ready for hanging.

Where it is desired to apply the paper to a ceiling or to a point where the machine is not accessible, the paper is drawn through the forward end of the machine as indicated at 66, this retaining the pasted surface up and permitting handling in the usual manner. In this last manner the paper may be drawn out in strips for papering the ceiling and cut off to suitable lengths, being all ready for application.

Having described an operative device it will be understood that variations in construction and arrangement of parts which are consistent with the appended claim may be resorted to without detracting from the spirit or scope of the invention or sacricing any of the advantages thereof.

I claim:

In combination, means for rotatably supporting a roll of paper, means for trimming the edges of the paper as it is drawn from the roll and means for applying paste to the back surface of the trimmed paper as it is drawn from the roll, said means for trimming the edges of the paper comprising a sleeve rotatably supported and means for securing said sleeve against rotation in adjusted position, and slitting elements radially adjustable on said sleeve and adjustable along the axis thereof and means for securing said elements in adjusted position, all of said means being assembled in a unit, said unit being vehicularly mounted for travel only in a plane parallel to the means for rotatably supporting the roll of paper, said means for applying paste comprising a roller, a paste container mounted above said roller and having an elongated nozzle in cooperative relation to the roller, means for adjusting the nozzle relative to the periphery of the roller, the paper haV- ing the back surface cooperating with the undersurface of the roller, whereby paste perpherally carried on the roller is transferred to the back surface of the paper, said roller being positively driven by the means for supporting the roll of paper as the paper is withdrawn, and in a direction opposed to the direction of travel of the paper.

CARL SCHERER.. 

